Joseph p



J. P.. MANTON.

SHIP WINDLASS.

(No Model.)

Patented Oct. 5,1886.

WITNESSES:

N. PE'IERS, PhnmLilhn n her, Washington. D. C.

UN ITED, STATES PATENT OFFICE.

JOSEPH P. MANTON, OF PROVIDENOE, RHODE ISLAND, ASSIGNOR TO EDGARTON BYNNER, OF BROOKLYN, N EWV YORK.

SHIP-WINDLASS.

SPECIFICATION forming part of Letters Patent No. 350,462, dated October 5, 1886.

To all whom it may concern- Be it known that I, JOSEPH P. MANTON, a citizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Ship Windlasses; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make anduse the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

My present invention relates to improvements in w'indlasses for ships use; and it consists, essentially, first, in providing the main- .shaft of'the Windlass, carrying one or more wild-cats, with a worm gear-wheel connected thereto for driving the Windlass, said screwgear engaging a screw or worm secured to a fore-and-aft driving-shaft, which in turn is driven by a donkey-engine or other suitable "motor located considerably abaft the Windlass.

The invention consists, secondly, of a ratchct-wheel firmly secured to the Windlass-shaft,

in combination with a recessed worm-gear carrying spring-actuated pawls adapted-t0 engage said ratchet, the gear being loosely mounted,

upon the shaft, whereby the power from the worm is transmitted to the gear and pawls,ancl from the latter to the ratchet, thus causing the shaft to revolve in one continuous direction, all as will be more fully hereinafter set forth.

Heretofore windlasses or machines of this class have had the worm-gear keyed firmly to the main shaft, or when loosely mounted thereon the gear is connected to .a head secured to the shalt by means of removable block-keys. These devices, however, admit of the Windlass being revolved in both directions, the latter device necessitating the removal of block-keys, in order to operate the Windlass by manual power, whereas the Windlass, if provided with my invention, is always ready to be worked either by steam or hand power without change.

In the accompanying sheet of drawings,Figure 1 represents an end elevation of a pumpbrake Windlass embodying my invention, the steam-power being furnished by means of a donkey-engine and boiler placed in a house located abal't the Windlass, as viewed from the Application filed January 15, 188 5. Serial No. 152.961. (No model.)

port side. Fig. 2 is a partial plan view of the same, the house being shown in horizontal section. Fig. 3 is a rear elevation, enlarged, of a portion of the windlass, showing in section the worm-gear, ratchet, and port wild-cat; and Fig. 4 is a partial transverse section of the screw-gear, showing the method of its attachment to the ratchet, the latter being secured to the Windlass-shaft.

The following is a description of the invention, including the manner of its operation.

A, again referring -to the drawings, designates one or more steam-engines, which by means of shafts c c and gearing c connects with the fore-and-aft inclined shaft 0, carrying the worm E at its forward end, said shaft, when necessary, being formed in two or more pieces and connected together by means of couplings 0 t designates thrust-bearings for the worm and its shaft, as common.

R designates the main or Windlass shaft, carrying loosely-mounted wild-cats K, and pumpbrake mechanism for operating the windlass by hand-power, also as common.

(I have represented portions of a pumpbrake windlassin the drawings; but, obviously, the Windlass may as readily be connected with a vertical shaft and capstan or other type of engage teeth f of the wheel F. Springs 8 insure the working of. the pawls.

The worm-wheel E consists of two partsthat is to'say, one side thereof isvmade removable or detachable, as shown at e, for the purpose of receiving and inclosing the ratchet-wheel F, before described. The side 6 is secured to the body portion of the wormwheel, and is provided with a hub, through which the main shaft R loosely passes, the whole, when combined with the ratchet and pawls, producing a very compact arrangement, as clearly shown in Figs. 3 and 4.

The operation is as follows: The engines A ICO windlass backward.

are first started, which, by means of intermediate gearing, causes the shaft (1 to revolve in the arrow-direction, the worm E at the same time, by means of its engagement with the gear-wheel E, causing the latter to revolve in its arrow-direction, said gear now, by its pawls p and engaging-wheel F, rotating the Windlass in the same direction, thereby adapting it to be employed for hoisting anchors or working purposes,as desired. It is obvious that should the worm E be revolved in the opposite direction the pawls 1; would then slide freely over the teethf of the wheel F, the shaft R remaining stationary.

\Vhen the Windlass is operated by manual power from the brakes or capstan, as the case may be, the worm-gear will then remain stationary and the ratchet-wheel F revolve freely therein, thus readily adapting the Windlass to be operated by steam or manual power at will without change, other than simply shutting off the steam from the engines. A clutch, c, Fig. 2, adapts the engines to be used for other hoisting purposes and independently of the .haft O.

Practically it is undesirable to revolve a ,lasses, and is common; neither is it new to provide the engine-shaft or the intermediate shaft of a combined steam and manual power working Windlass with a self-acting clutch,

The ratchet-wheel and,

and therefore I do not claim such construction and combination, broadly; but

\Vhat I do claim, and desire to secure by United States Letters Patent, is-

1. In aships windlass,the COHlblllillllOllflVlbll a ratchet-Wheel rigidly secured to the Windlassshaft, of a chambered or hollow worm gearwheel loosely mounted on said shaft, spring actuated pawls pivoted to and working in said wheel, acap or plate removably secured to and forming one side and hub of the worm-wheel, a Worm, and means whereby said worm and its wheel are operated, all constructed and arranged substantially as shown and set forth.

2. The loosely-mounted hollow gear-'wheel having a removable side and spring-actuated pawls pivoted to the interior of said wheel, in combination with a rigidly-secured ratchetwheel arranged in the gear-wheel and a drivingshaft having said wheels mounted thereon, substantially as set forth. 3. In a manual or steam power windlass,the combination, with the Windlass having a hollow worm-wheel loosely mounted on the windlass-shaft, a ratchet-wheel secured to the said shaft inside the worm-wheel and connected with the latter by means of selfacting pawls, of a steam-winch or donkey-engine mounted in a housing located abaft the Windlass,a suitably-mounted driving-shaft, 0, arranged foreand-aft, having a worm secured thereon engaging said worm-wheel, and gearing whereby the shaft 0 is actuated at right angles,or nearly so, with the driving-shaft of said donkey-engine, substantially as shown and set forth.

In testimony whereof I have affixed my signature in presence of two witnesses.

JOSEPH P. MANTON. Witnesses:

LEVI L. BURDON, Gno. H. REMINGTON. 

